本文整理汇总了Java中org.apache.hadoop.mapreduce.OutputFormat.getOutputCommitter方法的典型用法代码示例。如果您正苦于以下问题：Java OutputFormat.getOutputCommitter方法的具体用法？Java OutputFormat.getOutputCommitter怎么用？Java OutputFormat.getOutputCommitter使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.mapreduce.OutputFormat的用法示例。
在下文中一共展示了OutputFormat.getOutputCommitter方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: writeBadOutput
import org.apache.hadoop.mapreduce.OutputFormat; //导入方法依赖的package包/类
private void writeBadOutput(TaskAttempt attempt, Configuration conf)
throws Exception {
TaskAttemptContext tContext = new TaskAttemptContextImpl(conf,
TypeConverter.fromYarn(attempt.getID()));
TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
RecordWriter theRecordWriter = theOutputFormat
.getRecordWriter(tContext);
NullWritable nullWritable = NullWritable.get();
try {
theRecordWriter.write(key2, val2);
theRecordWriter.write(null, nullWritable);
theRecordWriter.write(null, val2);
theRecordWriter.write(nullWritable, val1);
theRecordWriter.write(key1, nullWritable);
theRecordWriter.write(key2, null);
theRecordWriter.write(null, null);
theRecordWriter.write(key1, val1);
} finally {
theRecordWriter.close(tContext);
}
OutputFormat outputFormat = ReflectionUtils.newInstance(
tContext.getOutputFormatClass(), conf);
OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
committer.commitTask(tContext);
}
示例2: writeOutput
import org.apache.hadoop.mapreduce.OutputFormat; //导入方法依赖的package包/类
private void writeOutput(TaskAttempt attempt, Configuration conf)
throws Exception {
TaskAttemptContext tContext = new TaskAttemptContextImpl(conf,
TypeConverter.fromYarn(attempt.getID()));
TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
RecordWriter theRecordWriter = theOutputFormat
.getRecordWriter(tContext);
NullWritable nullWritable = NullWritable.get();
try {
theRecordWriter.write(key1, val1);
theRecordWriter.write(null, nullWritable);
theRecordWriter.write(null, val1);
theRecordWriter.write(nullWritable, val2);
theRecordWriter.write(key2, nullWritable);
theRecordWriter.write(key1, null);
theRecordWriter.write(null, null);
theRecordWriter.write(key2, val2);
} finally {
theRecordWriter.close(tContext);
}
OutputFormat outputFormat = ReflectionUtils.newInstance(
tContext.getOutputFormatClass(), conf);
OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
committer.commitTask(tContext);
}
示例3: createOutputCommitter
import org.apache.hadoop.mapreduce.OutputFormat; //导入方法依赖的package包/类
private org.apache.hadoop.mapreduce.OutputCommitter
createOutputCommitter(boolean newApiCommitter, JobID jobId, Configuration conf) throws Exception {
org.apache.hadoop.mapreduce.OutputCommitter committer = null;
LOG.info("OutputCommitter set in config "
+ conf.get("mapred.output.committer.class"));
if (newApiCommitter) {
org.apache.hadoop.mapreduce.TaskID taskId =
new org.apache.hadoop.mapreduce.TaskID(jobId, TaskType.MAP, 0);
org.apache.hadoop.mapreduce.TaskAttemptID taskAttemptID =
new org.apache.hadoop.mapreduce.TaskAttemptID(taskId, 0);
org.apache.hadoop.mapreduce.TaskAttemptContext taskContext =
new TaskAttemptContextImpl(conf, taskAttemptID);
OutputFormat outputFormat =
ReflectionUtils.newInstance(taskContext.getOutputFormatClass(), conf);
committer = outputFormat.getOutputCommitter(taskContext);
} else {
committer = ReflectionUtils.newInstance(conf.getClass(
"mapred.output.committer.class", FileOutputCommitter.class,
org.apache.hadoop.mapred.OutputCommitter.class), conf);
}
LOG.info("OutputCommitter is " + committer.getClass().getName());
return committer;
}
示例4: createOutputCommitter
import org.apache.hadoop.mapreduce.OutputFormat; //导入方法依赖的package包/类
private org.apache.hadoop.mapreduce.OutputCommitter
createOutputCommitter(boolean newApiCommitter, JobID jobId, Configuration conf) throws Exception {
org.apache.hadoop.mapreduce.OutputCommitter committer = null;
LOG.info("OutputCommitter set in config "
+ conf.get("mapred.output.committer.class"));
if (newApiCommitter) {
org.apache.hadoop.mapreduce.TaskID taskId =
new org.apache.hadoop.mapreduce.TaskID(jobId, true, 0);
org.apache.hadoop.mapreduce.TaskAttemptID taskAttemptID =
new org.apache.hadoop.mapreduce.TaskAttemptID(taskId, 0);
org.apache.hadoop.mapreduce.TaskAttemptContext taskContext =
new TaskAttemptContextImpl(conf, taskAttemptID);
OutputFormat outputFormat =
ReflectionUtils.newInstance(taskContext.getOutputFormatClass(), conf);
committer = outputFormat.getOutputCommitter(taskContext);
} else {
committer = ReflectionUtils.newInstance(conf.getClass(
"mapred.output.committer.class", FileOutputCommitter.class,
org.apache.hadoop.mapred.OutputCommitter.class), conf);
}
LOG.info("OutputCommitter is " + committer.getClass().getName());
return committer;
}
示例5: createOutputCommitter
import org.apache.hadoop.mapreduce.OutputFormat; //导入方法依赖的package包/类
private OutputCommitter createOutputCommitter(Configuration conf) {
OutputCommitter committer = null;
LOG.info("OutputCommitter set in config "
+ conf.get("mapred.output.committer.class"));
if (newApiCommitter) {
org.apache.hadoop.mapreduce.v2.api.records.TaskId taskID = MRBuilderUtils
.newTaskId(jobId, 0, TaskType.MAP);
org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId attemptID = MRBuilderUtils
.newTaskAttemptId(taskID, 0);
TaskAttemptContext taskContext = new TaskAttemptContextImpl(conf,
TypeConverter.fromYarn(attemptID));
OutputFormat outputFormat;
try {
outputFormat = ReflectionUtils.newInstance(taskContext
.getOutputFormatClass(), conf);
committer = outputFormat.getOutputCommitter(taskContext);
} catch (Exception e) {
throw new YarnRuntimeException(e);
}
} else {
committer = ReflectionUtils.newInstance(conf.getClass(
"mapred.output.committer.class", FileOutputCommitter.class,
org.apache.hadoop.mapred.OutputCommitter.class), conf);
}
LOG.info("OutputCommitter is " + committer.getClass().getName());
return committer;
}